Ncert- CLASS 6 – SCIENCE- Chapter 10: Fun with Magnets 2 Welcome to your Ncert- CLASS 6 - SCIENCE- Chapter 10: Fun with Magnets 2 1. The marked end of a compass needle always points directly to Earth's geographic South Pole A magnet's north pole Earth's geographic North Pole A magnet's south pole None 2. The N-pole of a compass points to the .............. pole of a permanent magnet south north-east south-east north None 3. Which types of magnet have two poles close to each other? Bar magnet Horse-shoe magnet Electromagnet Cylindrical magnet None 4. Which of the following will help demagnetizing a magnet ? Putting in contact with iron Putting it in the water Cooling it Hammering the magnet None 5. How is a compass used to find directions? When suspended freely the compass needle starts rotating in a particular plane and the axis of rotation perpendicular to the plane gives us north and south poles When suspended freely the compass needle aligns itself in the north-south direction which gives us the direction of the north and south poles When suspended freely the compass needle aligns itself in the vertically up-down direction which gives us the perpendicular direction to the needle as north and south poles When suspended freely the compass needle aligns itself in the east-west direction which gives us the perpendicular direction to the needle as north and south poles None 6. What is the circular enclosure that the magnetic compass is placed in ? aluminium case iron case stainless steel case nickel case None 7. Complete the following statements with an appropriate word / term to be filled in the blank space(s).A compass needle is a ________ magnet : big small super fieldless None 8. The device used by sailors and navigator to know the direction is called Wind vane Speedometer Magnetic compass Direction finder None 9. The end of a free hanging magnet which points towards North is called South pole East pole North pole West pole None 10. Which of the following is not attracted by a magnet? cobalt bronze steel nickel None 11. Which shape of magnet is used in electric bell? Bar magnet Ball-ended magnet Horse-shoe shaped Cylindrical magnet None 12. _______ is the surest test of magnetism. None of the above Attraction Repulsion No change None 13. What kind of magnet is used in a magnetic compass ? electromagnet none of the above temporary magnet permanent magnet None 14. Which effect of force is caused by the magnetic force between a magnet and a magnetic substance? Change of chemical nature. Change of position. Change of shape. Change of physical state. None 15. A marine compass is used to determine direction determine H compare magnetic moments determine dip at a place None 16. The answer to which of the following options will distinguish between a magnetic material and a non-magnetic material? Is it a conductor or an insulator? Can it be given an electric charge? Is it a metal of a non metal? Does it affect the direction in which a compass needle points? None 17. Magnetic strength of the magnet is Distributed uniformly throughout the magnet Concentrated at both the poles of the magnet Concentrated in the centre of magnet Concentrated at one of the poles of the magnet None 18. The presence of magnetic field at a point can be detected by ammeter a compass needle galvanometer strong magnet None 19. How will hammering a bar magnet affect Its magnetic strength? None of the above Will not change Is likely to increase Is likely to decrease None 20. Magnet was discovered by Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
